Hi All,
I have a problem regarding tape compression that need expertise from all of you.
A batch of my tapes (hundreds of them) were previously used in uncompressed mode due to some device driver problem in the Master server's OS. The driver problem was solved. However, those old batch of tape (in uncompressed mode) will not only remains as uncompressed, it will also force the tape drive (LTO2) to remains in uncompressed mode once it is loaded into the drive. Meaning if I load in a new tape into this drive after a problem tape, the new tape will also be uncompressed.
This will continue untill an old tape in compressed mode is loaded into the drive then it will force the drive status back to compressed mode.
This is a big head ache as we will have to use a lots of additional tapes. I thought of useingsome means to initial all re-cycled tape before it will be used for backup. Any commands in NB or Unix that can force a tape in a drive with uncompressed mode to compressed ?
Any suggestion is welcome .
Regards,
WP
